Re: Booting from HDD

P9492: 'P' is protected mode, 9492 is the last hex address just past
which one of the debugging calls was executed. If I remember right,
that version starts at 0x9400, so it's only 0x92 bytes into the
bootloader.

On Sat, Mar 15, 2008 at 4:59 AM, Jason Kemp <[email protected]> wrote:
> Dear Nick,
>
>  Sorry, I sent this yesterday but it's been bounced back.
>
>  It doesn't boot from a flash drive.
>
>  The board has a Phoenix BIOS and it identifies a USB flash drive in the
>  BIOS setup as "USB-HDD0" so I assume it is emulating a hard disk--in
>  fact I had the same flash drive running FreeDOS before (so I could run
>  Pygmy) and DOS saw it as the C: drive.  So if it's emulating a HDD then
>  I expect that is why colorForth Won't boot fully--it displays "P9492" in
>  the top right though, which I assume is from the progress routine in
>  boot.asm.  Lots of guessing and assuming at the mo!
>
>  Just a brief Google of USB Flash booting and it appears that in some AMI
>  BIOSes give a forced FDD emulation option.
>
>  Jason
>
>  Nick Maroudas said the following on 14/03/2008 20:36:
>
>
> > Dear Jason,
>  >
>  > Looking forward to more from you and John Comeau, on how
>  > to boot (and save?) with his iso on your flash drive.
>  >
>  > Re your not finding a version that works on a 3GHz P4,
>  > I
>  > have the same experience with 3.3 GHz PD on Intel945
>  > board. None of the following booted properly - not
>  > John's CD of CFDOS4, nor floppies with Chuck's CF01,
>  > nor the Neitz/StMarie CF01, nor Josh's CF05 and a
>  > related CF05 from Ray - though every one of these ran
>  > reliably on my 0.55 GHz P4/ASUS P2. However (to my
>  > relief!) Howerd Oakford's CFDOS4 (from Howerd's
>  > website)
>  > runs on both the old and the new machine.
>  >
>  > http://www.inventio.co.uk/
>  >
>  > Scratching around for a possible reason, I found JC's
>  > meticulous comparison View of
>  > /colorforth/boot_asm_list.txt on SourceForge.net.
>  > According to my understanding of John's list, number 11
>  > is the only one for sure that "has VESA code instead of
>  > AGP" - VESA/VBE being the new standard for graphics
>  > software of course.
>  > JC lists number 11 as "/usr/src/howerd/VESA/boot.asm"
>  > but no. 10 is also by Howerd
>  > "/usr/src/howerd/Quartus/BOOT.ASM # same as Kris
>  > Johnson's"
>  > so I am not sure which boot.asm is used to boot Howerd's
>  > floppy, and which one is used to boot John's CD (and
>  > your USB flash drive). But if VESA code does indeed
>  > turn out to be crucial for some newer machines, then I
>  > shall owe it to JC's method for spotting the difference
>  > :-)
>  >
>  > Caritas,
>  >
>  > NickM
>  >
>  >
>  > Quoting Jason Kemp <[email protected]>:
>  >
>  >
>  >> ... " It's fine on the Jetway
>  >> ... " It doesn't work on my old Gateway SOLO2150 which
>  >> ... " runs the original CF01
>  >> ... " and Josh Grams's CF05
>  >> ... " So far nothing runs on my Asrock P4i64G 3GHz P4;
>  >> ... " anyway, I will try it again and pay more
>  >> ... " attention if you wish.
>  >> ... "
>  >> ... " I will try booting from a flash drive later on
>  >> ... " the Jetway too.
>  >> ... "
>  >> ... " Jason
>  >> ... "
>  >>
>  >
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-- 
John Comeau <[email protected]> http://jc.unternet.net/
"A place for everything, and everything
all over the place"